Physics for IGCSE & O level - Atoms And Radioactivity (Section 2 - No. 13)
What changes occur to the atomic number and mass number during alpha decay?
Atomic number decreases by 2; mass number decreases by 4.
Atomic number increases by 1; mass number remains the same.
Atomic number decreases by 1; mass number decreases by 1.
Atomic number remains the same; mass number decreases by 4.
Explanation
In alpha decay, the atomic number decreases by 2, and the mass number decreases by 4.
Comments (0)
